Climatological Report (Monthly)
Issued by NWS
Issued by NWS
939 CXAK57 PAJK 040631 CLMKTN NATIONAL WEATHER SERVICE JUNEAU AK 644 PM AKDT THU MAY 02 2024 ................................... ...THE KETCHIKAN CLIMATE SUMMARY FOR THE MONTH OF APRIL 2024... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1910 TO 2024 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 75 04/30/1995 LOW 12 04/02/1948 HIGHEST 65 04/19 62 3 04/20 LOWEST 30 04/17 28 2 AVG. MAXIMUM 51.1 49.8 1.3 AVG. MINIMUM 36.4 37.2 -0.8 MEAN 43.8 43.5 0.3 DAYS MAX >= 90 0 0.0 0.0 DAYS MAX <= 32 0 0.0 0.0 DAYS MIN <= 32 5 6.8 -1.8 DAYS MIN <= 0 0 0.0 0.0 PRECIPITATION (INCHES) RECORD MAXIMUM 23.03 2007 MINIMUM 1.58 1948 TOTALS 5.01 10.25 -5.24 DAILY AVG. 0.17 0.34 -0.17 DAYS >= .01 19 19.4 -0.4 DAYS >= .10 11 14.2 -3.2 DAYS >= .50 3 6.2 -3.2 DAYS >= 1.00 1 3.3 -2.3 GREATEST 24 HR. TOTAL 1.23 04/01 TO 04/02 DEGREE DAYS HEATING TOTAL 632 645 -13 SINCE 7/1 5583 6160 -577 COOLING TOTAL 0 0 0 SINCE 1/1 0 0 0 FREEZE DATES EARLIEST 10/23 LATEST 04/19 .............................................................. WIND (MPH) AVERAGE WIND SPEED 6.9 HIGHEST WIND SPEED/DIRECTION 35/130 DATE 04/07 HIGHEST GUST SPEED/DIRECTION 44/130 DATE 04/07 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 8 LIGHT RAIN 21 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 18 FOG W/VIS <= 1/4 MILE 0 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$ ...A WARM, DRY, AND TRANQUIL APRIL ACROSS SOUTHEAST ALASKA... A frontal system with a relatively decent tropical moisture fetch moved through the area around the 5th, bringing the most appreciable rainfall to the Panhandle. On that day, Juneau Airport set a new daily rainfall record with 0.77 inches, breaking their previous record of 0.72 inches, which was set back in 1955. A few relatively quick-moving and weak frontal systems gave light and short lived rain events and post frontal showers, primarily during the first third to half of the month. During that timeframe, Southeast Alaska received the vast majority of its precipitation. There was primarily blocking high pressure in place around our region, dominating the weather for most of the month, giving decreased clouds, drier weather, and increased daytime high temperatures from all of the excessive sunshine, which made the monthly average temperatures across the Panhandle a bit above normal. On the 19th, both Sitka and Yakutat Airports set records for high temperatures. Sitka`s new record is 65, breaking their old record of 61, set in 2021. Yakutat`s new record is 64, which broke their old record of 60, also set in 2021. On the 20th, Ketchikan, Sitka, and Yakutat Airports broke high temperature records. Ketchikan`s new record is 65, breaking their old record of 64, which was set back in 1934. Yakutat`s new record is 61, which broke their old record of 58, set back in 1989. Sitka`s new record is 63, breaking their old record of 61, which was set back in 1978. Additionally, Juneau International Airport received 0.2 inches of snow accumulation on the 1st of the month and several traces after that, before mid-month, primarily from isolated to scattered post- frontal nocturnal snow showers. Chambers $$